- CEO
- Lee Dong-won
- Full Time Employees
- 617
- Sector
- Producer manufacturing
- Industry
- Auto parts: OEM
- Address
- 82, Hyoja-ro Ulsan UL South Korea 44252
- IPO Date
- Sep 25, 2002
- Business
- Sjg Sejong Co., Ltd. (033530.KS) manufactures and supplies automotive exhaust systems and related components primarily for passenger and commercial vehicles in South Korea and internationally. Founded in 1976 and headquartered in Ulsan, South Korea, the company offers exhaust systems including exhaust manifolds, catalytic converters, selective catalytic reduction (SCR) systems, sub resonators, and main resonators; hydrogen solutions such as hydrogen sensors, metal bipolar plates for fuel cells, water traps, and hydrogen exhaust systems; electrification components integrating smart car technologies; electromechanical parts and sensor modules comprising nitrogen oxide sensors, temperature sensors, differential pressure sensors, oxygen sensors, particulate matter sensors, and urea-SCR systems; electronic devices including pressure sensors, pressure relief valves for hydrogen, wheel speed sensors, integrated charging control units, and shift-by-wire actuators; and green energy products like portable fuel cell systems and power generators converting liquefied petroleum gas to hydrogen-generated electricity. The company maintains the top market share in South Korea's domestic exhaust system market and operates production facilities in the United States, China, the Czech Republic, Slovakia, Mexico, Vietnam, and India. In April 2024, it rebranded from Sejong Industrial Co., Ltd. to Sjg Sejong Co., Ltd.; extended its equity buyback plan through June 2025; achieved TISAX certification in September 2024; and renewed its website in October 2024 to emphasize commitments to hydrogen solutions, electrification, and R&D for global competitiveness.